I am behind an Endian firewall which has port 22 opened from the green network to the red.
When I want to ssh to a server on the internet from a client on the green network I get the following error :
[root@jonas jonas]# ssh -vvv networkx-gent.no-ip.biz
OpenSSH_5.1p1, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to networkx-gent.no-ip.biz [75.X.225.X] port 22.
debug1: connect to address 75.X.225.X port 22: Connection refused
ssh: connect to host networkx-gent.no-ip.biz port 22: Connection refused
When I connect my client directly to the internet (and bypassing Endian) I am able to make a secure shell connection...
Why does ssh fail even when port 22 is opened ?? It's not that the 3-way-handshake does not succeed because else I would get a timeout...